Multifunctional rotary joint device of steelmaking converter

The utility model discloses a multifunctional rotary joint device of a steelmaking converter. The multifunctional rotary joint device comprises a header pipe (8) and a flange (9) fixedly connected to the header pipe (8), wherein a converter cap cooling water passage (2), a converter mouth cooling water passage (6) and a bottom blowing argon passage (3) are arranged on the flange (9); and an oil inlet passage (1) and an oil return passage (7) are also arranged on the flange (9). By adopting the technical scheme, the multifunctional rotary joint device of the steelmaking converter, provided by the utility model, is simple in structure, can ensure that a converter mouth and a converter cap of the converter can be cooled enough, and can meet laying installation requirements of a sliding plate skimming and converter temperature monitoring system at the same time, so that the cleanliness of molten steel is improved, the product quality is improved, the cost is reduced, the converter body temperature monitoring system is realized, accidents of steel seepage or steel leakage of the converter are avoided, and potential safety hazards are eliminated.